• San Mateo #1 Window & Gutter Cleaning Services

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Exterior Window Washing

Exterior Window Washing That Handles Millbrae's Fog, Salt, and Hard Water

Let’s be honest—your exterior windows take a beating around here. The marine layer rolls in from the Pacific almost every morning, leaving a fine mist on the glass. Then the sun burns it off, and whatever minerals were in that moisture get left behind. Add in the salty air from the Bay and SFO just down the road, and you’ve got a recipe for cloudy, crusty windows that no quick wipe is going to fix.

That’s where Fox Window & Gutter Cleaning comes in. We’ve spent nearly two decades washing exterior windows all over San Mateo County—from the sloped lots in Millbrae’s Taylor Estates to the older commercial buildings along Broadway. We know exactly what it takes to get glass truly clean out here, and we bring that know-how to every job.

Why Exterior Window Washing Matters in San Mateo County

Most folks don’t realize how bad their exterior windows have gotten until they see them clean. If you’re living west of El Camino Real, the salty air from the Bay has been corroding your window frames and leaving that hazy film on the glass. And if you’ve got mineral-rich tap water hitting those panes when you try to rinse them off yourself? That’s the chalky white residue you can’t seem to scrub away. Pressure washing cleaning in San Mateo, CA handles all of that—the built-up grime, the hard water spots, the sticky residue from the eucalyptus and pine trees that line so many of our neighborhoods. Here’s what that means for you:

Book Exterior Window Washing

Our exterior window washing service helps you:

  • See clearly through glass that's been fogged up by coastal moisture
  • Remove mineral deposits from Millbrae's hard water before they etch the glass permanently
  • Cut through the fine ash and soot from North Bay wildfire smoke that settles on outdoor panes in late summer
  • Protect aluminum window frames from the corrosive mix of salt air and moisture
  • Keep your home looking sharp whether you're on a flat lot in Lomita Park or a hillside property with views of the Bay

Residential Exterior Window Washing

Those mid-century ranch and split-level homes built in the 1950s and 70s? We’ve washed thousands of them across Millbrae and the surrounding cities. Many still have their original aluminum-frame windows, and those need a gentle touch—too much pressure or the wrong cleaning solution can warp the frames or scratch the glass permanently. We know which homes in Burlingame and San Bruno have those older windows, and we treat them accordingly.

On the sloped lots in Green Hills or the hillside properties overlooking the Bay, we stabilize our ladders properly and work safely on uneven ground. We’re also mindful of the older sewer mains in parts of the city—we limit wastewater runoff when we rinse, so we’re not dumping soapy water onto your driveway or patio where drainage is slow. It’s the kind of thing you don’t think about until it’s a problem, but we do.

We Clean:

  • Exterior glass on single-story ranches and multi-level estates
  • Skylights and solar tubes (careful with those seals!)
  • Sliding glass doors and French panes with stubborn track buildup
  • Screens and frames coated with Pacific salt and tree sap
  • Hard-to-reach second-story windows on Hillsborough homes and Broadway's second-floor residential units
  • Post-construction or move-in window washing in San Mateo County

Exterior Window Washing for Commercial Properties

A clean storefront, office, or building exterior says a lot about your business. We’ve all walked past a shop on Broadway in Millbrae or downtown Burlingame with streaky glass and thought, “Huh, that place looks a little tired.” That’s not how you want to come across. When your exterior windows are spotless, clients notice the difference immediately—especially when the coastal fog burns off and the sun hits the glass just right. We work around your hours, whether that means early mornings before you open or after you lock up, and we’re fully insured so you never have to worry. Our services are designed to keep your business looking its best.

Our exterior window washing services are ideal for:

  • Retail storefronts facing El Camino Real
  • Office buildings in Hillsborough and San Bruno
  • Restaurants and cafes with patio windows
  • Medical clinics and professional offices
  • HOA and apartment complexes in San Mateo County

Our Window Cleaning Process

We follow a detailed, multi-step cleaning process designed for long-lasting, streak-free results:

1. Assessment

Every job starts with a quick walkthrough. We assess the number, size, and accessibility of your windows and note any problem areas like hard water spots or oxidation.

2. Prep & Protection

We protect your flooring, furniture, and landscaping as needed. Our team is respectful of your space and always takes care not to leave a mess behind.

3. Screen & Track Cleaning

We remove and clean screens with a soft brush and solution, then vacuum and wipe down the tracks and sills—details many companies skip.

4. Glass Cleaning (Interior & Exterior)

We use eco-friendly, ammonia-free cleaning solutions and high-quality applicators to lift grime from the glass, followed by professional-grade squeegees to achieve a flawless finish.

5. Final Inspection

Before we call it done, we walk the property with you and inspect every pane together. If something's not right, tell us on the spot and we'll make it right — right then.

Types of Windows We Wash Outside

Whether you’ve got a classic mid-century ranch in Lomita Park or a newer build up near Taylor Estates, exterior window washing isn’t one-size-fits-all. We’re trained and equipped to handle the full range of window styles you’ll actually find across San Mateo County — from the 1950s aluminum frames still common in Millbrae to modern floor-to-ceiling glass on Hillsborough slopes. Here’s what we see most often and clean regularly:

We Clean:

  • Double-hung windows — including the older ones with sash cords that need gentle handling
  • Sliding and casement windows, especially on the split-levels built in the 60s and 70s
  • Bay and bow windows that catch that bay breeze and all the grime that comes with it
  • Skylights and transom windows — tricky spots that need the right tools and a steady ladder
  • French panes and divided lights common in the older downtown commercial buildings along Broadway
  • Glass railing panels — a lot of the newer decks in Burlingame and San Bruno have these, and they show every water spot
  • Custom architectural glass on homes built or renovated in the last decade

What's Included in Every Exterior Window Washing Appointment?

When you book exterior window washing with us, you’re not just getting a quick pass with a squeegee. We work through it methodically — especially important when you’re dealing with the kind of hard water and fog film we see all over San Mateo County. Here’s what every appointment includes:

  • Full inspection of windows and screens — we look for seal failures, rot on older frames, and loose glass before we start
  • Interior and exterior cleaning — because the film from coastal moisture builds up on both sides
  • Track and sill wipe-down — where the Pine sap and eucalyptus debris likes to collect
  • Screen removal, wash, and reinstallation — we handle those carefully, especially the aluminum ones that corrode faster near SFO
  • Streak-free glass finishing — with the right acid-based solution for the hard water chalk that plain soap won't touch
  • Friendly service and satisfaction guarantee — we don't leave until you've walked the property with us and you're happy

How Often Should You Get Exterior Window Washing Done?

Honestly, one of the most common questions we get is, “How often should I get my exterior windows washed?” It’s not a one-size-fits-all answer. It depends on where you live, what’s around your property, and how much you care about spotless glass. But here’s our tried-and-true advice for homes and businesses across San Mateo County, CA. If you’re weighing your options, check out our guide on how to choose the best window cleaning service in San Mateo County for more detailed tips. And if you’re in Millbrae specifically, our guide on how to choose the best window cleaning service in Millbrae, CA covers the local specifics. For more about who we are and what we stand for, feel free to visit our About Us page. We’re always happy to hear from you—reach out through our Contact Us page anytime.

  • Every 3–6 months for homes in coastal or high-traffic areas. And let's face it — if you're near the Bay or SFO, that salty air and marine layer means your windows take a beating year-round.
  • Quarterly for businesses or storefronts. First impressions matter, and a clean storefront on Broadway or El Camino Real tells customers you're on top of things.
  • Twice per year for standard home maintenance. That's the sweet spot for most Millbrae homes, especially during the rainy season from November through April.
  • Before special events, home listings, or seasonal transitions. If you're selling your home in Hillsborough or Burlingame, crystal-clear exterior windows can make a huge difference in curb appeal.
Book Exterior Window Washing in San Mateo County, CA
Belmont, CABurlingame, CADaly City, CAHalf Moon Bay, CAMenlo Park, CAMillbrae, CAMountain View, CAPacifica, CAPalo Alto, CARedwood City, CASan Bruno, CASan Carlos, CASan Francisco, CASan Jose, CASan Mateo, CASanta Clara, CASouth San Francisco, CASunnyvale, CA

Service Areas We Cover